3com S7906E Installationsanweisungen
1-21
Remote IP : 10.2.1.1
Local IP : 10.2.1.2
# Display the routing table of Switch A.
[SwitchA] display ip routing-table
Routing Tables: Public
Destinations : 4 Routes : 4
Destination/Mask Proto Pre Cost NextHop Interface
10.2.1.0/24 Direct 0 0 10.2.1.2 Vlan3
10.2.1.2/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
The output information above indicates the BFD detection result, that is, the next hop 10.2.1.1 is
unreachable (the status of the track entry is Negative), and the configured static route is invalid.
VRRP-Track-Interface Management Collaboration Configuration Example (The
Master Monitors the Uplink Interface)
Master Monitors the Uplink Interface)
Network requirements
z
As shown in
, Host A needs to access Host B on the Internet. The default gateway of
Host A is 10.1.1.10/24.
z
Switch A and Switch B belong to VRRP group 1, whose virtual IP address is 10.1.1.10.
z
When Switch A works normally, packets from Host A to Host B are forwarded through Switch A.
When VRRP detects that there is a fault on the uplink interface of Switch A through the interface
management module, packets from Host A to Host B are forwarded through Switch B.
Figure 1-7 Network diagram for VRRP-track-interface management collaboration configuration
Configuration procedure
1) Configure the IP address of each interface as shown in
.
2) Configure a track entry on Switch A.
# Configure track entry 1, and associate it with the physical status of the uplink interface VLAN-interface
3.